flip_trace_test.go RawHistoryFolder

1package drm
2
3import (
4	"bytes"
5	"strings"
6	"testing"
7	"time"
8
9	"github.com/bnema/neferwl/internal/ports"
10	"github.com/bnema/zerowrap"
11	"github.com/stretchr/testify/mock"
12)
13
14// Only the event of our pending commit is traced: a stale event and the
15// event that ends an EBUSY wait are not.
16func TestTraceFlipsOnlyOurCommit(t *testing.T) {
17	o, _, commits := testOutput(t)
18	o.cursor = nil
19	o.traceFlips = true
20	var log bytes.Buffer
21	o.log = zerowrap.New(zerowrap.Config{Level: "debug", Format: "json", Output: &log})
22	seen := map[ports.WindowID]uint64{}
23	flips := func() int { return strings.Count(log.String(), `"message":"flip"`) }
24
25	if err := o.commitFrame(70, nil, false, false, pendingFrame{}); err != nil {
26		t.Fatal(err)
27	}
28	c := (*commits)[0]
29	stale := flipEvent{crtc: tCrtc, user: c.user + 1<<userKindBits}
30	if o.completed(stale, seen) || flips() != 0 {
31		t.Fatalf("stale event traced: %s", log.String())
32	}
33	if !o.completed(flipEvent{crtc: tCrtc, user: c.user, when: time.Second}, seen) || flips() != 1 {
34		t.Fatalf("own commit not traced: %s", log.String())
35	}
36	if o.lastFlipAt != time.Second {
37		t.Fatalf("last flip %s", o.lastFlipAt)
38	}
39
40	o.frame.busy(time.Now())
41	if !o.completed(flipEvent{crtc: tCrtc, user: 12345}, seen) || flips() != 1 {
42		t.Fatalf("EBUSY wait end traced: %s", log.String())
43	}
44}
45
46// A modeset starts a new flip interval: the time the output was inactive
47// is not reported as a frame interval.
48func TestModesetResetsFlipTrace(t *testing.T) {
49	o, k, _ := testOutput(t)
50	o.lastFlipAt = time.Second
51	k.EXPECT().createBlob(mock.Anything).Return(99, nil).Once()
52	if err := o.modeset(); err != nil {
53		t.Fatal(err)
54	}
55	if o.lastFlipAt != 0 {
56		t.Fatalf("after modeset: last flip %s", o.lastFlipAt)
57	}
58}